Shale gas horizontal well sticking point instrument boosting tool
A technology for horizontal wells and shale gas, used in surveying, wellbore/well components, earth-moving drilling, etc., to achieve the effect of reducing diameter, simple operation, and reducing resistance
Active Publication Date: 2019-05-21
XIHUA UNIV
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Problems solved by technology
[0005] The purpose of the present invention is to provide a booster tool for the shale gas horizontal well measuring instrument in order to solve the problem of effectively lowering and pulling back the measuring instrument in the shale gas horizontal well, and quickly and effectively completing the measuring operation.
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[0012] Such as figure 1 and figure 2 As shown, a booster tool for a shale gas horizontal well measuring instrument of the present invention is composed of a cable 1, a locking cone sleeve 2, a locking nut 3, a locking joint 4, a first O-shaped sealing ring 5, a second O-shaped sealing ring 6, upper joint 7, upper leather bowl 8, electromagnet 9, third O-shaped sealing ring 10, electromagnetic sealing seat 11, upper armature recovery seat 12, central spring 13, upper pulley cage 14, screw 15, Compression spring 16, pulley support body 17, cover plate 18, fourth O-ring 19, middle joint 20, fifth O-ring 21, transition joint 22, lower leather cup 23, lower armature recovery seat 24, lower pulley The cage 25, the sixth O-ring 26, the lower joint 27, the seventh O-ring 28, the pulley pin shaft 30, and the pulley 31 constitute. The cable 1 is composed of insulating sheath and wire core, the wire core at one end of the cable 1 is connected to the electromagnet 9 and the card measur...
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The invention relates to a shale gas horizontal well sticking point instrument boosting tool used in the fields of well drilling and well logging in the petroleum and gas industry, and solves the problem that the sticking point instrument is effectively lowered to complete sticking point operation and is reliably recovered. According to the technical scheme, a wire core at one end of a cable is conducted with an electromagnet and a sticking point instrument, and a wire core at the other end of the cable is conducted with an electric control platform; a cable penetrates through an inner hole ofthe locking joint, the locking joint is in threaded connection with the locking nut, the locking joint is in threaded connection with the upper joint, the electromagnet is installed in the electromagnetic sealing base, the electromagnetic sealing base is in threaded connection with the upper joint, the electromagnetic sealing base is in threaded connection with the middle joint, and the upper leather cup is arranged on the upper joint in a sleeving mode. The upper pulley retainer is in threaded connection with the middle joint, and the lower pulley retainer is in threaded connection with thelower joint; and the lower joint is in threaded connection with the card measuring instrument, and the pulley supporting body is arranged in the radial through hole of the upper pulley retainer. The leather cup is retracted by electrifying the cable, so that the resistance between the leather cup and the pipe column is effectively reduced, the cable load is reduced, and the construction safety ofthe measuring card is ensured.
Description
technical field [0001] The invention relates to a booster tool for a shale gas horizontal well measuring instrument used in the field of drilling and well logging in the petroleum and natural gas industry. Background technique [0002] Shale gas is a natural gas resource that can be exploited in shale formations. China has relatively large recoverable reserves of shale gas. As a new energy source, the development of shale gas has been in full swing in recent years. Shale gas exploitation technologies mainly include horizontal well technology, multi-layer fracturing technology, clear water fracturing technology, repeated fracturing technology, etc. In large shale gas producing areas such as Chongqing Fuling and Changning-Weiyuan in my country, shale gas is exploited mainly by drilling horizontal wells. Due to the complex geological conditions of shale gas wells, pipe sticking often occurs, so down-testing is often required. The card instrument performs card testing on horizon...
Claims
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IPC IPC(8): E21B23/08E21B47/09
Inventor 孔春岩刘春林李双双张均富赵勇王国军
Owner XIHUA UNIV