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Proceedings Papers

Paper presented at the Offshore South East Asia Conference, February 17–20, 1976
Paper Number: SPE-5972-MS
... string and hanger, a tubing hanger Prior to running the tubing string and hanger, a tubing hanger orienting bushing is run. (Fig. 2). The orienting bushing is landed in the connector below the blowout preventers. After it is landed, it is rotated until a spring loaded dog locks into a vertical slot...
Images
Images
<span class="search-highlight">Locking</span> <span class="search-highlight">Dogs</span> supporting the weight of the fairlead
Published: 06 September 2011
Figure 17 Locking Dogs supporting the weight of the fairlead More
Images
All the Recovered Three <span class="search-highlight">Locking</span> <span class="search-highlight">Dogs</span>
Published: 15 March 2022
Figure 19 All the Recovered Three Locking Dogs More
Proceedings Papers

Paper presented at the SPE Offshore Europe, September 8–11, 1987
Paper Number: SPE-16536-MS
... this difficulty a specific lock was designed (Fig. 1) ; the top No Go lock features a floating piston, that will move up when pressurizing the control line, pushing a locking sleeve that will secure the locking dogs in an outer position. A snap ring will hold the locking sleeve in place thus preventing...
Proceedings Papers

Paper presented at the Offshore South East Asia Show, February 26–29, 1980
Paper Number: SPE-8855-MS
.... When the box section has seated on the pin drive shoulder, the actuating screws are then rapidly driven in by impact wrench. This action, as illustrated in Figure 2, drives the locking dogs in to mate with corresponding groove rings on the pin member. In doing so, the tapered surface of the dog threads...
Proceedings Papers

Paper presented at the SPE/ICoTA Well Intervention Conference and Exhibition, March 22–23, 2022
Paper Number: SPE-208995-MS
...Figure 19 All the Recovered Three Locking Dogs ...
Proceedings Papers

Paper presented at the SPE Deepwater Drilling and Completions Conference, June 20–21, 2012
Paper Number: SPE-151279-MS
... of buckling phenomenon in complex or unconventional wells drilled today. Indeed, existing buckling criteria assume generally that the wellbore is idealistically perfect without any dog legs. Recent advancements in drillstring mechanics modelling has demonstrated that dog legs, friction and rotation affect...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 2–5, 2005
Paper Number: OTC-17141-MS
... joint. The BHA can be tripped with wireline, coiled tubing or drill pipe. When the BHA is run into the well, spring-loaded dogs in the DLA stop the tool at the proper depth to lock it to the profile nipple. The locking process is accomplished by shifting a sleeve downward to positively extend lock dogs...
Proceedings Papers

Paper presented at the SPE California Regional Meeting, April 18–20, 1979
Paper Number: SPE-7955-MS
... screws are then rapidly driven in by impact wrench. This action, as illustrated in Figure 2, drives the locking dogs in to mate with corresponding groove rings on the pin member. In doing so, the tapered surface of the dog threads contacts the corresponding pin groove taper, creating a preloaded...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 5–8, 1997
Paper Number: OTC-8471-MS
.... Petrobras is still working to improve this new conception. There are some advantage using this conception : - No divers are requested during pull in operation - Reduced standby on weather. - Standardization. - Divers will only work after complete the three riser installations. They will lock the dogs...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 7–9, 1984
Paper Number: OTC-4728-MS
... identifies the parts of the ESV. The four cross-hatched parts forming the "chassis" carry the following components: A.P.I. specifIcation ball, seat, and guided cage. Piston unit for transport. A collet with locking dogs. A prop ring with integral no-go dogs which are interdigitated with the collet fingers...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 2–5, 2016
Paper Number: OTC-27263-MS
... the connector to be used in ultra- deep water environments along with continental shelf environments. The connector requires rotation of the lifting sub and internal dogged mandrel, to engage the locking interfaces within the connector. The lifting sub has two, API 17H compliant ROV interfaces attached, marked...
Journal Articles
J Pet Technol 20 (01): 93–101.
Paper Number: SPE-1845-PA
Published: 01 January 1968
... restricting the passage of drilling equipment. In these instances extensive remedial work is required to realign the parted pieces and seal the exposed formations. Several methods used to strengthen the bottom joints of casing strings include locking set screws in the couplings, putting wedges in special...
Proceedings Papers

Paper presented at the SPE/IADC Drilling Conference and Exhibition, March 17–19, 2015
Paper Number: SPE-173141-MS
... situation. If a point-the-bit RSS enables drilling a generally smooth wellbore, the utilization of steerable motor in the horizontal section may create a slide-rotary pattern with numerous dog legs. As a consequence, trajectory reconstruction is of utmost importance to reproduce the lock-up situation...
Proceedings Papers

Paper presented at the SPE Nigeria Annual International Conference and Exhibition, August 6–8, 2018
Paper Number: SPE-193507-MS
.... The tester valve consists of a curved flapper valve and spring, a shear ring and locking dogs that allow the curved flapper to be fully closed during a pressure test; while the valve can be fully over ridden with a higher hydraulic pressure, which then opens a large-internal diameter through valve bore...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 1–4, 1989
Paper Number: OTC-6086-MS
... and support the desired casing pre-tension. The redundant casing hangers are then retrieved for future use. The casing hanger and slip dog assembly is securely locked down by the activation of the annulus seal. The unique all-metal annulus sealing system developed for this application consists of two parts...
Proceedings Papers

Paper presented at the Offshore Technology Conference, April 27–30, 1987
Paper Number: OTC-5574-MS
... to which the completion guide structure can be locked. Eight lock dogs on the guide structure are made up by a diver with an impact wrench to preload the completion structure to the housing. DIVERLESS RETRIEVABLE DRILLING GUIDE STRUCTURE (COLLET TYPE) (Figure 5) The diverless retrievable drilling guide...
Proceedings Papers

Paper presented at the IADC/SPE Drilling Conference and Exhibition, March 6–8, 2012
Paper Number: SPE-150347-MS
... selected by the operator involved a casing exit system with a longer whipstock face therefore providing a longer casing exit window and reduced dog leg severity through the junction area. Additionally, the chosen whipstock system provided a patented "fulcrum design" to actively lock the whipstock assembly...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 5–8, 1986
Paper Number: OTC-5320-MS
... a latching profile on top so that 1 lTC5320 : H.B._SKEELSAN 2) 3) 4) running tools can lock on to the guidepost for installation or removal. The outer body also features a landing ring that lands in the bottom of the guidepost receptacle s funnel to space out the latch dogs below the receptacle body. Inner...

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