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Bottom hole assembly (BHA) design for directional control

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Proceedings Papers

Paper presented at the Offshore Technology Conference Brasil, October 29–31, 2019
Paper Number: OTC-29750-MS
... of the bottom hole assembly and bit selection is critical. assembly bha configuration drilling operation upstream oil & gas motor assembly drilling assembly soft shallow formation benin sand rock strength bha drilling equipment motor bha directional drilling systems and equipment...
Proceedings Papers

Paper presented at the SPE/IADC International Drilling Conference and Exhibition, March 8–12, 2021
Paper Number: SPE-204129-MS
... that different bottom hole assemblies should be used.This is particularly true when it comes to wellbore quality. The study dataset included 29 BHAs used in the Permian Basin and 32 BHAs used in the Eagle Ford spanning more than 10 operators and 15 directional contractors. These were analyzed...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 9–12, 2005
Paper Number: SPE-95546-MS
... a variety of drilling parameters and sideloads. Axial and lateral bit trajectories are measured and a response curve is generated. The bit side cutting angle measured in the lab, is equivalent to bit tilt calculated on a bottom hole assembly (BHA). Several hundred tests have been run to measure the response...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 19–22, 2010
Paper Number: SPE-135308-MS
... followed the roller cones were 1/8" smaller than the roller cone bits with a gauge diameter of 6-1/4". This tapering of the hole was planned to facilitate running the assembly to bottom. BHA 2 was designed with a bit to 1 st stabilizer placement distance of 4.91 ft. This resulted in an average build rate...
Proceedings Papers

Paper presented at the IADC/SPE Asia Pacific Drilling Technology Conference, August 22–24, 2016
Paper Number: SPE-180498-MS
... Abstract The main objective of this paper is to share the experience of the first Dual reamer bottom hole assembly (BHA) design implemented off-shore Norway, Gullfaks field, 17 ½ × 20-inch section. It presents the drilling challenges, innovative bottom hole assembly and the first world wide...
Journal Articles
SPE Drill & Compl 33 (03): 252–258.
Paper Number: SPE-187098-PA
Published: 08 June 2018
... on the bottom of the section, rather than leaving an 85- to 135-ft rathole. Because the ABR placement in the BHA is between the bit and the rotary-steerable-system (RSS) tool, it was important to ensure that directional control could be maintained in the section and make certain no interference existed between...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 9–11, 2017
Paper Number: SPE-187098-MS
... drilling under-reamer objective inclination Reamer Drilling Equipment RSS rathole hole section Rathole Elimination ABR requirement stabilization modeling drillstring design Upstream Oil & Gas directional control BHA configuration wellbore directional performance society of petroleum...
Proceedings Papers

Paper presented at the SPE Latin American and Caribbean Petroleum Engineering Conference, April 27–30, 2003
Paper Number: SPE-81148-MS
... Assembly design represents a very important subject in the planning phase of any well. A wrong BHA design could lead the operation to extra cost, due to directional corrections. One of the Bottom Hole Assemblies tool components are the stabilizers wich have the function of centralizing the bit and drill...
Proceedings Papers

Paper presented at the SPE Nigeria Annual International Conference and Exhibition, August 5–7, 2019
Paper Number: SPE-198754-MS
... environment. The extensive engineering evaluation, using finite-element analysis and torque-and-drag calculations, confirmed the bottom hole assembly (BHA) design was technically feasible without compromising safety and drilling efficiency. Three wells successfully delivered all directional objectives...
Proceedings Papers

Paper presented at the IADC/SPE Asia Pacific Drilling Technology, September 9–11, 2002
Paper Number: SPE-77220-MS
.... It is shown that buckling defines the maximum bit force, and also shown is the design of such an operation, including optimal placement of stabilizers and drillcollars. Introduction The major objectives of the bottom-hole-assembly (BHA) is to provide force for the drill bit and to control the direction...
Proceedings Papers

Paper presented at the SPE/IADC Drilling Conference, February 23–25, 2005
Paper Number: SPE-92439-MS
... on-bottom drilling performance with the ability to effectively clean the hole to allow trouble free tripping of the bottom hole assembly (BHA), running of casing, and obtaining primary cement jobs. The best practices discussed in this paper include changes made to improve rotary steerable reliability...
Proceedings Papers

Paper presented at the IADC/SPE International Drilling Conference and Exhibition, March 3–5, 2020
Paper Number: SPE-199640-MS
... and a major redesign of the rig components. The University of Oklahoma team (winner) made significant changes to its existing rig to drill directional holes. The design change was introduced to optimize the performance of the bottom hole assembly (BHA) and allow directional drilling. The criteria...
Proceedings Papers

Paper presented at the SPE/IADC Drilling Conference and Exhibition, March 1–3, 2011
Paper Number: SPE-138001-MS
... Abstract Conventional wellbore departure and drilling systems generally require the operator to make multiple downhole trips to achieve a specific objective. For example, a window milling bottom hole assembly (BHA) is run in hole to create an exit path in the existing casing and drill...
Proceedings Papers

Paper presented at the SPE Asia Pacific Oil and Gas Conference and Exhibition, September 20–22, 2011
Paper Number: SPE-147809-MS
..., over gauge wellbore. Traditionally positive displacement motor (PDM) bottom hole assemblies (BHAs) were used to directionally drill in these difficult hole conditions. Drilling performance was far from ideal. Steering penetration rates were typically 50–80% less than those obtained when rotating, even...
Proceedings Papers

Paper presented at the SPE/IADC Drilling Conference, March 4–6, 1997
Paper Number: SPE-37654-MS
... the rate of penetration. The technique is also used to reduce problems associated with lost circulation and differential sticking. A new bottom hole assembly (BHA) has been designed to be compatible with current and future CTD techniques. The first generation of BHAs were often cumbersome devices which...
Proceedings Papers

Paper presented at the IADC/SPE Drilling Conference, February 28–March 2, 1988
Paper Number: SPE-17196-MS
... in the future. Two of the major challenges associated with drilling directional wells include: design of multi-stabilizer bottom hole assemblies (BHAs) to increase (build); decrease (drop); or maintain (hold) angle of drilling; and control of the unpredicted wellbore deviation from a predetermined...
Proceedings Papers

Paper presented at the IADC/SPE Drilling Conference, February 9–12, 1986
Paper Number: SPE-14766-MS
... Stabilizers are primarily used in bottom hole assemblies (BHA) for controlling devia- tion in both straight holes and directional holes. However, stabilizers can serve other purposes. Near bit stabilizers may be used not only for deviation conrr21 but also to enhance penetration rates. ' They do so by both...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 25–28, 1994
Paper Number: SPE-28325-MS
... stability with weight applied to the bit, particularly at high rotation speeds. The mining industry does not generally use bottom hole assemblies (BHA's) which are a combination of drill collars to provide weight for the bit and stabilizers to control direction. A major oilfield drilling contractor...
Proceedings Papers

Paper presented at the SPE/IADC Drilling Conference, February 27–March 1, 2001
Paper Number: SPE-67696-MS
... to publish. Special thanks to J.M. Hache and Schlumberger Engineering for the Multi-Axis Vibration Chassis tool. Nomenclature AKO top sub on mud motor BHA bottom hole assembly g gravity LWD logging while drilling (tool) MVC multi-axis vibration chassis MWD measurement while drilling (tool) PDC...
Proceedings Papers

Paper presented at the IADC/SPE Drilling Conference, March 4–6, 2008
Paper Number: SPE-112670-MS
... different operating companies for their willingness to publish this data obtained with the 12 hole-size PathMaker® RSS. We are grateful to PathFinder Energy Services for permitting the publication of this work. Nomenclature AFE = Authorization For Expenditure BHA = Bottom Hole Assembly 8 IADC/SPE 112670 CPS...

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