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Petroleum exploration drilling tool

A technology for oil exploration and drilling tools, which is applied in the direction of drilling tools, drill bits, drilling equipment, etc., can solve problems such as waste of resources, save manpower and material resources, and reduce drilling costs

Pending Publication Date: 2018-08-17
无锡锡钻地质装备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the previous oil drilling method is full-scale drilling, which is a waste of resources. To change this situation, it is necessary to change the previous single exploration into comprehensive exploration. It is also necessary to obtain geological cores to find out whether there are other minerals underground and their distribution

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] An oil exploration drilling tool, comprising an oil exploration drill pipe, the lower end of the oil exploration drill pipe is provided with an exploration connector (64), and the exploration connector (64) is connected to an oil conversion joint (63) or a coring conversion joint (66) is connected; the oil conversion joint (63) is connected with the oil drill bit (65), and the described coring conversion joint (66) is connected with the rope core drilling tool.

[0035]The upper end of the oil exploration drill pipe is a power joint (61), and the power joint (61) and the exploration joint (64) are connected through an intermediate drill pipe (62); The diameter is less than the outer diameter of the power connector (61) and the exploration connector (64).

[0036] Both ends of the oil conversion joint (63) are provided with internal taper threads, one end is matched with the exploration connector (64), and the other end is matched with the oil drill bit (65).

[0037] T...

Embodiment 2

[0053] To the further optimization of embodiment 1,

[0054] The elastic caliper (4) is composed of pairs of cards (41), and the paired cards (41) are installed on the elastic card frame (33) through pin shafts; the bottom of the spearhead (2) is provided with an elastic caliper lock pin (62), the spring caliper lock pin (62) is inserted or extracted in cooperation with the space between the upper ends of the two cards (41). Thoroughly prevent the spring caliper from retracting under the upward pressure of the bottom and slipping on the top during the drilling process.

[0055] The bullet card holder (33) includes from top to bottom a spearhead sliding section (50), a bullet caliper installation section (52), a recovery tube limiting boss (54) and a mandrel connecting section (55); The spearhead sliding section (50) is provided with a spearhead sliding hole (51) opened in the up and down direction, and the spearhead (2) slides up and down to be connected in the spearhead slid...

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Abstract

The invention discloses a petroleum exploration drilling tool. The petroleum exploration drilling tool comprises a petroleum exploration drilling rod, and an exploration connector is arranged at the lower end of the petroleum exploration drilling rod and connected with a petroleum conversion connector or a coring conversion connector; the petroleum conversion connector is connected with a petroleum drill bit, and the coring conversion connector is connected with a rope coring drilling tool. According to the petroleum exploration drilling tool, original single exploration is changed into comprehensive exploration, coring operation can also be conducted at certain stratums where geological rock cores need to be acquired, and a traditional drilling tool which can only achieve comprehensive drilling can be changed into a multifunctional drilling tool which can achieve comprehensive drilling and conduct coring operation.

Description

technical field [0001] The invention relates to the technical field of drilling tools, in particular to an oil exploration drilling tool. Background technique [0002] Petroleum exploration is to find and ascertain oil and gas resources, and use various exploration methods to understand the underground geological conditions, understand oil generation, oil storage, oil and gas migration, accumulation, preservation and other conditions, comprehensively evaluate oil and gas prospects, and determine the location of oil and gas accumulation. In favorable areas, it is the process of finding oil and gas storage traps, ascertaining the area of ​​oil and gas fields, and finding out the situation and production capacity of oil and gas layers. There is no need to obtain geological cores, this drilling method from the present point of view, [0003] However, the previous oil drilling method is full-scale drilling, which is a waste of resources. To change this situation, it is necessary...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B10/48E21B7/28E21B12/00
CPCE21B7/28E21B10/48E21B12/00
Inventor 徐颂贤张世文
Owner 无锡锡钻地质装备有限公司
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