CN2731097Y

CN2731097Y - Angle difference measurer for horizontal well and direction well

Info

Publication number: CN2731097Y
Application number: CN 200420070210
Authority: CN
Inventors: 乔忠明; 张微; 张利刊; 杜峰
Original assignee: Liaohe Petroleum Exploration Bureau
Current assignee: Liaohe Petroleum Exploration Bureau
Priority date: 2004-08-06
Filing date: 2004-08-06
Publication date: 2005-10-05
Anticipated expiration: 2014-08-06

Abstract

The utility model relates to an angular difference measurer for a horizontal well and a directional well, which is used for the measurement of the angular difference of a horizontal well and a directional well. Half rings slightly bigger than a directional joint and a screw drill are buckled on the directional joint and the screw drill through pins. The direction of the bent joint of the directional joint or the screw drill is centered through an upper and a lower supports. Then, the angular difference between the direction of the bent joint of the screw drill and the direction of the base key of the directional joint can be directly read through the angle values marked on an upper and a lower circular rings. The problems of big and inaccurate error, troublesome computation and slow measurement speed existing in the prior art are solved. The utility model can be widely applied for the measurement of the angular difference of the horizontal wells and the directional wells.

Description

Horizontal well, directional well angular difference measuring instrument

Technical field:

The utility model relates to a kind of horizontal well, the measuring horizontal well of directional well angular difference, directional well angular difference measuring instrument.

Background technology:

Many usage levels well or directional well recover the oil in present oil field, the horizontal well production technique functions comes from the twenties in 20th century, development is than very fast, and obtained to improve the economic benefit of oil well output more than 3 times, make heavy crude reservoir, fractured reservoir, oil-gas reservoir that bottom water coning is serious and oil sheet have also been realized economy, scientific development.But lacking the instrument, the instrument that match with horizontal well at present needs further perfect.Because it generally is with tape measure orientation joint and helicoid hydraulic motor bent sub direction to be aligned up and down that horizontal well, directional well angular difference are measured, use one again the length in week between the tape measure upper-lower position, relation by central angle and girth calculates corresponding differential seat angle again, as one of foundation of adjusting the tool face azimuth, its shortcoming is that error is big, and is inaccurate, calculates trouble, it is slow to test the speed, inconvenient site operation.

The utility model content:

In order to overcome deficiency of the prior art, the utility model provides a kind of horizontal well, directional well angular difference measuring instrument, utilizes this measuring instrument can measure angular difference between helicoid hydraulic motor bent sub direction and landing nipple seat key direction in constructing at the scene directly and accurately.

The technical scheme that the utility model technical solution problem is adopted is: at the scene in the work progress, after well head connects helicoid hydraulic motor and orientation joint, the left and right sides semi-ring of this measuring instrument is fastened on respectively on helicoid hydraulic motor and the landing nipple, the two halves interannular connects with pin, hanging up properly lower carriage on the annulus that connects up and down respectively, intersection length in the adjusting between lower carriage, making up and down, annulus lays respectively at the bearing mark place of orientation joint and the bent sub bearing mark position of helicoid hydraulic motor, rotate annulus up and down, make lower carriage corresponding to the identical graduation position of annulus up and down, screw jackscrew, contrast calculates the direction indication of orientation joint and the differential seat angle that the bent sub direction is pointed to, note, as the reference data of adjusting the tool face azimuth.Unload jackscrew, tear lower carriage successively open, pin and left and right sides semi-ring are treated to use next time.

The utility model beneficial effect is simple in structure, and is easy to operate, uses this measuring instrument can directly read angular difference between screw rod bent sub direction and landing nipple seat key direction, and accurately; This measuring instrument can repeat repeatedly to use.

Description of drawings:

Fig. 1 is the utility model overall structure schematic diagram.

Among the figure 1, right semi-ring, 2, left semi-ring, 3, upper bracket, 4, lower carriage, 5, pin, 6, jackscrew.

The specific embodiment:

In Fig. 1, this measuring instrument mainly is made up of left semi-ring 1, right semi-ring 2, upper bracket 3, lower carriage 4, pin 5, jackscrew 6; Left and right sides semi-ring is circular, the angle value that circumferentially is marked with 0～180 degree in the semi-ring outside, and be provided with the pin hole that can fasten in its end, left semi-ring 1 is connected with pin 5 when fastening with right semi-ring 2, when executing side, available manually being fixed on carried out the angular difference measurement on helicoid hydraulic motor or the orientation joint.The end of last lower carriage is provided with circular groove, can hang over and fasten on the good annulus, upper bracket 3 is inserted in the circular groove of lower carriage 4, intersection in the middle of it can be adjusted as required, the two ends annulus can upwards adjust in week up and down, and the two ends annulus aligns with respect to support about making, after the adjustment, can utilize jackscrew 6 will go up lower carriage, utilize reading on the annulus to read differential seat angle between bent sub direction and orientation joint seat key direction with respect to the fixed-site of two ends annulus up and down.

Claims

1, a kind of horizontal well, directional well angular difference measuring instrument, it comprises left semi-ring (1), right semi-ring (2), upper bracket (3), lower carriage (4), pin (5), jackscrew (6), it is characterized in that: left and right sides semi-ring is for circular, the angle value that upwards is provided with 0～180 degree week in the semi-ring outside, and be provided with pin hole in its end, be connected with pin (5) when left side semi-ring (1) fastens with right semi-ring (2), be fixed on helicoid hydraulic motor or the orientation joint; The end of last lower carriage is provided with circular groove, can hang over to fasten on the good annulus, and upper bracket (3) is inserted in the circular groove of lower carriage (4), with jackscrew (6) will go up lower carriage with respect to about the fixed-site of two ends annulus.