Drilling Depth And Hole Diameter Specification

Depth reference definition

Ask the well or drilling project designer to define the reference point used for every requested depth. Request a marked sketch connecting that reference to the proposed hole. Identify whether the same reference applies across the enquiry and send unclear entries back to the designer before requesting equipment proposals.

Keep the reference sketch attached to the depth schedule and ask bidders to identify it in their replies. Request clarification if a proposal uses another reference description. Ask the buyer appointed reviewer to resolve the difference before comparing equipment responses or incorporating an alternative into the purchase brief.

Hole diameter schedule

Request a hole drawing that locates each diameter requirement within the proposed design. Ask the designer to label the required dimensions and identify the drawing revision used for the enquiry. Keep buyer requested dimensions separate from any equipment dimensions proposed by a bidder in the response.

Ask the equipment reviewer which additional hole geometry information is needed to assess the requested drilling package. Link open questions to the relevant drawing location. Where the project includes different hole designs, ask for separate answers against each design rather than a combined response lacking location references.

Ground record association

Create an index connecting the requested hole designs with their relevant ground investigation records. Ask the project adviser to identify the location represented by each report and to distinguish current project information from background documents. Request clarification where the depth schedule and investigation record use different location names.

Send the indexed reports with the requirement schedule and ask bidders to identify the documents used for their equipment review. Ask which ground information remains missing for a particular hole request. Keep the document question attached to that hole entry and name the project party responsible for supplying a response.

Design revision control

List the hole drawings and schedules currently issued for enquiry, with the revision identifier recorded beside each document. Ask the project designer to identify superseded versions and mark the requirements that have changed. Circulate the current register with the purchasing brief so that equipment bidders can reference the same requirement set.

Request revised answers from affected bidders when the designer changes a hole requirement. Ask the technical reviewer to identify which earlier clarifications remain relevant. Keep the change description beside the revised drawing reference and ask the purchasing owner to confirm which responses are ready for commercial comparison.

Equipment proposal alignment

Ask bidders to respond to the requested depths and diameters by referring to the relevant hole schedule entries. Request the supporting equipment documents needed by the appointed reviewer. Ask for a written explanation where a proposed package requires the project team to reconsider part of the submitted hole brief.

Keep suggested equipment alternatives on distinct response lines and identify the hole requirement each is intended to address. Refer questions about changes to the hole design to the designer. Ask the equipment reviewer to list unresolved document questions before the buyer compares proposed scope and commercial terms.

Hole requirement approval

Identify the professional responsible for approving depth and diameter requirements and the buyer contact responsible for purchasing scope. Ask each reviewer to mark the questions assigned to their role. Request a final schedule showing which entries are approved for enquiry and which still require a design decision.

Before ordering, ask the technical reviewer to reconcile the proposed equipment documents with the approved hole schedule. Confirm the final drawing references in the purchasing request and ask for clarification of any outstanding requirement. Keep commercial decisions linked to the scope approved by the buyer rather than to an earlier draft.