Hoisting Head With Coniform Spring For Petroleum Instrument

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Solution Overview

Problem

The current methods for replacing or repairing petroleum instruments during drilling are labor-intensive, inefficient, and costly, as they require pulling out and reassembling drill rods, leading to significant economic losses due to prolonged drilling stoppages.

Innovation Solution

A hoisting head system with a stair-shaped hoisting hole and coniform extension spring mechanism that allows for the safe and efficient relocation of petroleum instruments from the ground back into the drill rod, enabling the instrument to be reinstalled without disassembling the drill rods.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of repair

If the petroleum instrument is replaced or examined by pulling out drill rods, then the instrument can be accessed for repair, but the drilling process must be stopped and labor intensity increases

Engineering Contradiction:
Improveinstrument accessibilityVSAvoiddrilling progress
Core Design Contradiction:
Ease of repairVSProductivity

Solution Approach 1:

The drill rod system is segmented into modular sections with standardized coupling mechanisms. The drill rod is divided into upper and lower segments that can be independently manipulated, allowing the instrument to be accessed without removing entire drill rod assemblies. This segmentation enables selective access to the instrument while maintaining the integrity of the drilling string.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

A specialized coupling device acts as an intermediary mechanism between drill rod segments. This coupling device includes locking components and releasing mechanisms that allow the upper and lower drill rod segments to be temporarily disconnected, providing access to the instrument, and then reconnected to restore drilling capability. The intermediary device facilitates instrument repair while minimizing disruption to the overall drilling operation.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Ease of repair

If drill rods are pulled out to replace the instrument, then the instrument can be replaced, but time loss and economic cost increase

Engineering Contradiction:
Improveinstrument replacement capabilityVSAvoiddrilling stoppage time
Core Design Contradiction:
Ease of repairVSLoss of time

Solution Approach 1:

The coupling devices between drill rod segments are pre-configured with quick-release mechanisms and alignment features. Before instrument replacement is needed, the drill rod segments are prepared with accessible coupling points and the necessary tools are positioned. This preliminary preparation allows the coupling devices to be rapidly disconnected and reconnected, minimizing the time the drilling operation is stopped for instrument replacement.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The coupling device incorporates self-aligning features and automatic locking mechanisms that reduce the manual effort and time required for disassembly and reassembly. The design allows operators to quickly release and reconnect drill rod segments without complex procedures, enabling rapid instrument replacement while maintaining drilling productivity.

Inventive Principle:
Principle #25Self-service

3Ease of repair

If manual disassembly of drill rods is performed, then the instrument can be accessed, but labor intensity and operational complexity increase

Engineering Contradiction:
Improveinstrument accessibilityVSAvoidoperational simplicity
Core Design Contradiction:
Ease of repairVSEase of operation

Solution Approach 1:

A specialized coupling device serves as an intermediary mechanism that simplifies the disassembly and reassembly process. This device includes standardized interfaces, alignment guides, and mechanical locking components that automatically engage when drill rod segments are brought together. The coupling device eliminates the need for complex manual disassembly procedures, reducing operational complexity while providing easy access to the instrument for repair or replacement.

Inventive Principle:
Principle #24Intermediary (Mediator)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

This solution reduces labor intensity and costs by allowing the petroleum instrument to be reinstalled without stopping the drilling process, minimizing economic losses and improving efficiency by salvaging only the instrument rather than the entire drill rod.

Implementation Method 1

when the hoisting head is made in a falling state under the action of gravity, the coniform extension spring is in a compression state, and the coniform extension spring is driven to move to a part adjacent to the clamping piece by compression

Methodology Applied
Scientific EffectGravitation: Gravitation

Implementation Method 2

a coniform extension spring, which is sleeved on the insertion rod and the connecting rod... when the coniform extension spring is in a compression state, two clamping pieces will be driven in a retraction state

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentUS9938790B2Petroleum instrument hoisting system and hoisting head
Publication Date: 2018.04.10 BEIJING HAILAN SCI & TECH DEV
  • US9938790B2 patent drawing
  • US9938790B2 patent drawing
  • US9938790B2 patent drawing

AI summary

The present invention discloses a petroleum instrument hoisting system and a hoisting head, which is used for hoisting a petroleum instrument. The hoisting head includes: a lifting part, for connecting a lifting rope; an insertion rod, which is located under the lifting part and used for protruding into a stair-shaped hoisting hole, and is set with a notch on both sides thereof; a insertion head, which is connected with the insertion rod via a connecting rod, wherein the insertion rod is set with a slide opening that is in sliding fit with the connecting rod, and the lateral surface of one end of the insertion rod that is adjacent to the connecting rod is a conical surface; a coniform extension spring, which is sleeved on the insertion rod and the connecting rod, wherein one end thereof with a large cross-sectional area is sleeved on the insertion rod, and the other end thereof with a small cross-sectional area is sleeved on the connecting rod and is fixed relative to the connecting rod; two clamping pieces, which are respectively hinged in two notches, and the clamping face thereof can be in hooking fit with a hooking face in the horizontal plane; two pulling ropes, which are respectively connected with the other end of the corresponding clamping piece, and the orientations of the other ends, which are connected with the pulling ropes, of the two clamping pieces are opposite to each other. By the above solution, the hoisting of a petroleum instrument can be solved.