1-20 of 144 Search Results for

Workover of a UBD well

Follow your search
Access your saved searches in your account

Would you like to receive an alert when new items match your search?
Close Modal
Sort by
Proceedings Papers

Paper presented at the SPE Latin American and Caribbean Petroleum Engineering Conference, April 27–30, 2003
Paper Number: SPE-81069-MS
.... As a result of this success, UBD principles are increasingly being extended to a wider range of drilling, workover and completion operations. The same reservoirs that show positive economics results from the use of UBD technology are also good candidates for other live well operations. In fact...
Proceedings Papers

Paper presented at the SPE Middle East Oil and Gas Show and Conference, September 25–28, 2011
Paper Number: SPE-142363-MS
... engineers reservoir characterization lateral contribution workover application reservoir mmscfd productivity ubctd rate gain In the Underbalanced Drilling (UBD) process, the wellbore pressure in the open hole section is kept below the reservoir pressure. Unlike conventional Overbalanced...
Proceedings Papers

Paper presented at the Middle East Drilling Technology Conference & Exhibition, October 26–28, 2009
Paper Number: SPE-125281-MS
... situations, fields will have to be abandoned if this economic development cannot be realized. One of the techniques developed to combat the difficulties of operating in depleted zones is UBD (2). UBD has evolved into a new facet of the oil and gas industry. Some wells have been drilled underbalanced...
Proceedings Papers

Paper presented at the SPE Offshore Europe Oil and Gas Conference and Exhibition, September 8–11, 2009
Paper Number: SPE-123270-MS
... cake and no over pressure to push the pipe against the wall of the wellbore. Of course It does not mean that no stuck pipe occurs when drilling underbalanced. PR-66 well was drilled UB in its workover program. Stuck pipe happened in this operation whereas it was one of the UBD wells of Parsi...
Proceedings Papers

Paper presented at the SPE/IADC Drilling Conference, March 9–11, 1999
Paper Number: SPE-52833-MS
... application in the industry than purely UBD applications. A range of tasks are now performed with all or part of the equipment set, and used in a number of drilling, completion and workover operations. A no kill policy for the life of the well is being introduced by some Canadian operators. This has greatly...
Proceedings Papers

Paper presented at the SPE/IADC Managed Pressure Drilling and Underbalanced Operations Conference and Exhibition, January 28–29, 2008
Paper Number: SPE-114258-MS
... technology safely and in an environmentally safe manner in oil wells. The primary objective of drilling these oil wells underbalanced was to demonstrate that a closed/semi-closed system can be utilized properly and safely to undertake underbalanced drilling (UBD) operations in the Ghawar field. Furthermore...
Proceedings Papers

Paper presented at the SPE/IADC Middle East Drilling Technology Conference and Exhibition, October 20–22, 2003
Paper Number: SPE-85317-MS
... into reservoir, the reservoir rock is in as natural condition as possible. One amazing thing that has been seen is that up until now conventionally drilled Nimr wells would almost never free flow to surface even under workover conditions. With UBD, most of the wells will free flow once the lift gas has been...
Proceedings Papers

Paper presented at the Offshore Technology Conference Asia, March 22–25, 2016
Paper Number: OTC-26677-MS
... conspicuous acknowledgment of OTC copyright. Abstract Due to possibility of sub hydrostatic pore pressure, a nitrified water system was selected in a 2 well underbalanced drilling (UBD) campaign in West Malaysia for reservoir characterization and productivity. The first well was drilled with nitrified...
Proceedings Papers

Paper presented at the SPE EUROPEC/EAGE Annual Conference and Exhibition, May 23–26, 2011
Paper Number: SPE-142892-MS
... Abstract During under-balanced drilling (UBD) of a horizontal well, down-hole pressure and temperature, as well as surface rate and pressure data are acquired. Theoretically, estimation of reservoir permeability profile can be achieved by quantitative analysis of these data. However...
Proceedings Papers

Paper presented at the SPE/ICoTA Coiled Tubing Conference and Exhibition, March 23–24, 2004
Paper Number: SPE-89434-MS
... was realized at an early stage in remedial applications, as workover operations could be carried out without introducing kill fluids into the wellbore. By design, drilling with CT fits perfectly with UBD operations, provided penetration rates are adequate and reservoir targets can be hit. Coiled Tubing...
Proceedings Papers

Paper presented at the IADC/SPE Managed Pressure Drilling & Underbalanced Operations, March 28–29, 2007
Paper Number: SPE-108337-MS
... a TRSCSSV at 2,000 ft and gas-lift mandrels. During the workover phase, the UBD equipment was spotted and commissioning began. Final inspections and audits were performed prior to the Authorization to Proceed being given. Drilling Phase First Well (Figure 13) - Prior to sidetracking static reservoir...
Proceedings Papers

Paper presented at the SPE/IADC Middle East Drilling Technology Conference and Exhibition, October 20–22, 2003
Paper Number: SPE-85326-MS
... the difficulties of operating in depleted zones is Under-balanced Drilling - UBD. There are several publications describing this technique in detail 1–3 . However, there are technical limitations that mean that UBD cannot be used in many cases. In these situations, a more traditional drilling operation must...
Proceedings Papers

Paper presented at the Asia Pacific Oil and Gas Conference and Exhibition, October 30–November 1, 2007
Paper Number: SPE-108230-MS
... sometimes UBD significantly improves productivity compared with conventional overbalanced drilling (OBD) practices but sometimes it doesn't. To answer this question, an extensive reservoir engineering study to understand the mechanisms of productivity improvement from UBD must be performed. A single-well...
Proceedings Papers

Paper presented at the SPE Eastern Regional Meeting, September 15–17, 2004
Paper Number: SPE-91453-MS
... commonplace in Alaska and the North Sea for many years. The challenge of drilling grass roots wells was undertaken, and, by the turn of the century, many of the challenges associated with coiled tubing drilling (CTD) had been overcome. Underbalanced Drilling (UBD), which was once very challenging, has become...
Proceedings Papers

Paper presented at the IADC/SPE Managed Pressure Drilling & Underbalanced Operations, March 28–29, 2007
Paper Number: SPE-108358-MS
... environment. The Emergency Shutdown Valve (ESD) is a remotely actuated safety device used to isolate well inventory from personnel and equipment, to prevent the severity of the incident escalating due to fire and/or explosion. The UBD choke manifold is used for controlling well-bore pressure and reducing...
Proceedings Papers

Paper presented at the Abu Dhabi International Petroleum Exhibition and Conference, November 1–4, 2010
Paper Number: SPE-136682-MS
... was required by ADCO to sustain the damage mitigation benefits of UBD through the life of the well. Live tripping will be required during drilling operations and future workovers. Either a snubbing unit or a Downhole Isolation Valve (DIV) can be used to enable live tripping. Pressure MWD (P-MWD) was also...
Proceedings Papers

Paper presented at the SPE/IADC Middle East Drilling Technology Conference, October 22–24, 2001
Paper Number: SPE-72328-MS
..., un-aerated oil, water, even weighted mud can be used for UBD in areas where formation pore pressure gradients are higher than hydrostatic pressure gradient of water. The increasing coverage of wells being drilled with the UBD is due to many advantages of the technology. These advantages include...
Proceedings Papers

Paper presented at the Annual Technical Meeting, June 9–11, 1996
Paper Number: PETSOC-96-75
... content reduced air, air, flue gas, natural gas) and surface equipment considerations for a given UBD operation, are reviewed INTRODUCTION Underbalanceddrilling CUBD) is utilized with increasing frequency as a method to increase oil and gas well profitability by reducing invasive fornlation damage...
Proceedings Papers

Paper presented at the IADC/SPE Asia Pacific Drilling Technology Conference and Exhibition, November 13–15, 2006
Paper Number: SPE-106367-MS
... functionality is provided by the BOPs. The complete UBD closed-loop flow control system comprises of the drill pipe (DP) circulating system, a UBD control device (UBD-CD), which provides the sealing mechanism around the drill string at surface, a UBD choke manifold (not the rig's well control choke manifold...
Proceedings Papers

Paper presented at the SPE International Symposium and Exhibition on Formation Damage Control, February 18–20, 2004
Paper Number: SPE-86465-MS
... fluid dynamics drillstem/well testing reservoir simulator permeability drilling upstream oil & gas Abstract In this paper, we illustrate an approach to underbalanced drilling (UBD) candidate selection based on damage assessment and characterization using dynamic reservoir simulations...

Product(s) added to cart

Close Modal